Lithodidae Dromiidae Atelecyclidae Cancridae Pirimelidae Cheiragonidae Dorippidae Eriphiidae Epialtidae Inachidae Oregoniidae Pilumnidae Geryonidae Portunidae Potamidae Panopeidae Xanthidae Grapsidae Images Name list Publications Sites alex@equator.ru Whole checklist По-русски (in Russian) Porcellanidae Varunidae Camptandriidae Macrophthalmidae Pinnotheridae Hapalogastridae Plagusiidae Far East / North Pacific Black Sea Baltic Sea Freshwater crabs Arctic Ocean Designed and composed by Alex Alyakrinsky, 2011 Oregoniidae Oregonia gracilis Dana, 1851 Far East / North Pacific Range. “From Bering Sea (Nunivak Island and Commander Islands) to Monterey Bay,  California, and Honshu Island, Japan. Shallow water to 212 fathoms.” [Rathbun, 1925, p. 79].  Among algae. (Doflein) On Zostera marina. (Way) Among eel grass. (Hart) On wharf piling.  (Ricketts and Calvin) The dorsum is covered with numerous hooked hairs which permit  masking with hydroid polyps, etc., affording the animal marked concealment. (Doflein) Often  adorned with sponges, algae, bryozoans, and hydroids. (MacKay) Barnacle-bedecked. (Lenz)  Depth: Shallow water to 212 fathoms. (Rathbun) Specimens examined came from depths of  from 3 to 74 fathoms. [Garth, 1958, p. 139].  Size of carapace. The series at hand includes males ranging in size from 13.5 mm to the 60 mm  specimen measured above and females ranging from 11.3 to 45 mm. Ovigerous females show  great disparity in size, ranging from 11.3 to 44.6 mm. The largest specimen on record is the  65.7 X 39 mm male measured by Rathbun (1925). [Garth, 1958, p. 139].  Oregonia gracilis Dana, 1851 Oregonia gracilis Dana, 1851a, p. 270; 1852, p. 106; atlas, 1855, pl. 3, figs. 2a-c.  Stimpson, 1857b, p. 456. Spence Bate, 1866, p. 269. Lockington, 1877c, p. 74. Miers,  1879c, p. 646.  S. I. Smith, 1880, p. 209. Newcombe, 1893, p. 2 1 ; 1898, p. 76. Rathbun, 1894, p. 59;  1904, p. 171; 1925, p. 71, pis. 24, 25, text-figs. 19, 20. Calman, 1898, p. 260. Walker,  1898, p. 274. Doflein, 1899, p. 183. Holmes, 1900, p. 19. Lenz, 1901, p. 453. Taylor, 1912,  pp. 191, 208. Way, 1917, p. 369, fig. 20. Schmitt, 1921, p. 198, text-figs. 122a, 122b.  Johnson and Snook, 1927, p. 365, text-fig. 315. G. M. Smith, 1928, pp. 164, 165. Yokoya,  1928, p. 765; 1933, p. 141, p. 210. Hart, 1930, p. 105; 1940, p. 97. MacKay, 1931, p. 187;  1944, p. 149, text-fig. 2. Shen, 1932, p. 48, text-figs. 23, 24, 25. Clemens, 1933, p. 51.  Ricketts and Calvin, 1939, p. 249. Stephensen, 1945, p. 218.   Oregonia hirta Dana, 1851a, p. 270; type locality, Puget Sound; type not extant; 1852, p.  107; atlas, 1855, pi. 3, figs. 3a, 3b. Stimpson, 1857b, p. 546. Spence Bate, 1866, p. 269.  Lockington, 1877c, p. 75. Whiteaves, 1878, p. 471.  Oregonia longimana Spence Bate, 1864, p. 663; type locality, Esquimalt Harbor,  Vancouver Island; type in British Museum; 1865, p. 487; 1866, p. 267, pl. facing p. 262,  fig. 5.